utility = {
		json : {},
		replaceAll : function(search, replace, text){
			return text.split(search).join(replace);
		},
		removeText: function(text){
			pattern = /[^\d]+/;
			return this.replaceAll(pattern, '', text);
		},
		removeDigits   : function(text){
			pattern = /\d+/;
			return this.replaceAll(pattern, '', text);
		}
};

String.prototype.replaceAll = function(search, replace){
	return utility.replaceAll(search, replace, this);
};